Snow-plow.



PATENTED SEPT. 24, 1907. J. W. FLYNN. SNOW PLOW.

urmornon m-sn MAY 22, 1201.

2 SEEETS-SHBET 1.

l 72 WITNESSES: f/VLENTOR.

A TTOR/VEYS UNITED STATES PATENT OFFICE.

ASSIGNOR OF ONE- HALF TO THOMAS J. MARION, OF TRENTON, NEW JERSEY.

SNOW-PLOW.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed May 22,1907. Serial No. 375,086.

To all whom it may concern:

Be it known that I, JOHN W. FLYNN, a citizen of the United States, residing at Bordentown, in the county of Burlington and State of New Jersey, have invented a new and useful Snow-Plow, of which the following is a specification.

This invention has relation to snow-plow attach ments adapted to be used uponlocoinotives, motorcars or similar vehicles and it consists in the novel construction and arrangement of its parts as hereinafter shown and described.

The object of the invention is to provide an attachment of the nature indicated, the parts of which are so arranged as to engage the snow lying upon a track and readily force the same from a state of rest in a lateral direction as the vehicle moves longitudinally of the track and deposit the same at one or both sides of the track.

The plow consists of a frame having suitable means for attachment with the forward end of the vehicle, said frame having a lower scoop plate which is slightly elevated at its rear edge and which operates transversely across the track. A top plate is located above the scoop plate and a vertically disposed conveXed back plate connects the rear portions of the top and scoop plates together. Said back plate may be inclined rearwardly from its middle toward both of its ends for the purpose of throwing the snow beyond each side of the track or it may be inclined from one end to the other for the purpose of throwing the snow to one side of the track only. A series of vertically disposed plates are mounted at the forward portion of the top and scoop plates and have their forward edges lying in advance of the forward edges of the said top and scoop plates. The rear edges of the vertical plates are cut away or recessed longitudinally in order to afford area for the lateral passage of snow. The inner edges of those plates nearest the point upon the back plate where the course of the snow is diverted from a longitudinal to a lateral direction are nearer the surface of the said back plate than are the edges of those vertical plates lying between such points upon the back plate and the end or ends thereof. That is to say, the dis tance between the rear edges of the vertical plates and the point specified upon the back plate gradually increases from the plates in front of the point mentioned to those plates located at the discharge edge of the back plate. Edge plates are provided which project sufficiently in front and to the side of the plow as to bring the snow in from the edges of the furrow cut therein and deposit the same upon the back plate from which point it is cast beyondthe side of the track. The scoop plate elevates the snow from the track surface upon the back plate which acts upon the same as above specified.

In the accompanying drawing:Figure 1 is a front elevation of one form of the invention. Fig. 2 is a horizontal sectional view of the same. Fig. 3 is a vertical sectional view of the same. Fig. i is a front elevation of another form of the invention. Fig. 5 is a horizontal sectional View of the same, and Fig. 6 is a vertical sectional view of the same. I

The snow plow attachment consists of the frame 1 which is provided with a means, (not shown) whereby it may be attached to the forward end of a locomotive, motor-car or other vehicle. The upwardly and rearwardly inclined scoop plate 3 is located at the lower portion of the frame 1 and traverses the track or road bed with its ends projecting for a sufficient distance beyond the sides of the track. The top plate 4 is located above the scoop plate 3 and traverses the track in a similar manner. The convcxed back plate 5 is vertically disposed bctween the rear portion of the top and scoop plates and has its convexity disposed toward the forward edges of the said top and scoop plates.

In the form of the invention, as shown in Figs. 1 to 3, the back plate 5 is rearwardly disposed from its middle toward its ends, which are located in the vicinity of the vertical sides of the plow. This form of plate is used when it is desired to divide the snow and cast the same beyond both sides of the track.

In the form of the invention, as shown in Figs. 4 to 6, the back plate is inclined from one end to its other end and has its said ends lying in the vicinity of the vertical sides of the plow. This form of back plate is employed when it is desired to remove the snow from the track and cast the same to one side thereof only.

A series of vertical plates 6 are arranged in advance of the back plate 5 and are secured at their upper and lower ends to the scoop and top plates respectively. The forward edges of the plates 6 lie in advance of the forward edges of the scoop plate 3, while the rear edges of the plates 6 lie between a vertical plane erected from the forward edge of the scoop plate 3 and the back plate 5. The rear edgcs of the vertical plates 6 are cut away or recessed longitudinally, whereby, the said plates have greater side area at their end portions than at their middles. The rear edges of the plate or plates 6, directly in front of the point upon the plate 5 nearest a vertical plane erected from the forward edge of the scoop plate 3 are nearest the said back plate 5, while the remaining plates have their rear edges spaced away at increasing distances toward the discharge end or ends of the back plate 5. Thus the area between the vertical plates 6 and the back plate 5 increases proportionately with the quantity of snow that is operated upon by the back plate and suflicient space is provided for the lateral egress of the snow. The edge plates 7 are located at the ends of the series of plates 6 and are also vertically disposed, they are, however, of greater lateral area than the plates 6 and their forward edges lie for a sufficient distance beyond the vertical and front sides of the plow as to bring the snow in from the edges of the furrow and deposit the same upon the back plate 5. The plates 6 are inclined laterally in the same general direction as that in which the surface of the back plate 5 immediately behind extends for the purpose of diverting the -snow readily from a longitudinal movement into a lateral movement over the surface of the plate 5. The edge plates 7 are disposed in a general transverse plane to that in which the portions of the plate 5 immediately behind the same lie. The rear edges of the plates 7 are recessed and spaced from the plate 5 at the same rate of progression as that described for the rear edges of the plates 6.

From the foregoing description it is obvious that a the plow is forced through the snow the scoop plate 3 will lift the snow from the surface of the track and shunt the same against the back plate 5. The plates 6 will slightly divert the line of travel of snow from a longitudinal to a lateral or lateral directions according to the disposition of the plates 6. The said plates also cut the snow into strips and macerate the same sufficiently to facilitate the lateral diversion. By reason of the anticlinal disposition of the plate 5, the said plate possesses suflicient resiliency which, when acted upon by the impact of the snow, casts the same from its edges and imparts a spring impetus suflicient to deposit the snow fairly beyond the side or sides of the furrow cut therein.

Having described my invention what I claim as new and desire to secure by Letters-Patent is:

l. A snow plow comprising a frame, a scoop plate at tached thereto and a resilient back plate located above the scoop plate.

2. A snow plow comprising a frame, a scoop plate at tached thereto and a resilient anticlinal back plate located above the scoop platev A snow plow comprising a frame, a scoop plate attached thereto, a back plate located above the scoop plate and having its discharge portion rearwardly inclined, vertical plates mounted upon the scoop plate and located in advance of the back plate and having their rear edges spaced from the back plate for increasing distances toward the discharge portion thereof.

l. A snow plow comprising a frame, a scoop plate attached thereto, a back plate located above the scoop plate and having a rearwardly disposed discharge portion and having its surface inclined toward said discharge portion, vertical plates mounted upon a scoop plate in advance of the back plate and being pitched in the same general direction as the direction of inclination of the surface of the back plate lying behind their rear edges.

5. A snow plow comprising a frame, a scoop plate attached thereto, a back plate located above the scoop plate, a series of vertical plates mounted upon the scoop plate and located in advance of the back plate and edge plates located at the ends of the said series of plates and being inclined generally toward a plane passing transversely and vertically through the middle of the plow.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

JOHN WINFIELD FLYNN.

Witnesses:

WALTER S. Lr'rrs, JOHN H. lIu'rcI-uNsoN. 

